Kestrel 3000 Data Sheet

Kestrel® 3000 ENVIRONMENTAL METER

WIND SPEED • TEMPERATURE • WIND CHILL RELATIVE HUMIDITY • HEAT INDEX • DEW POINT

Know your conditions Measure environmental conditions quickly and accurately Wide range of wind speeds and a low start-up speed Reliable, portable and easy to use

• Small, robust design • Data hold function • Large easy to read display with backlight • Waterproof and floats • High precision jewel mounted impeller • Replaceable impeller assembly • Fast response temperature sensor • Long life lithium battery • Low cost • Includes protective cover, lanyard and battery • 5 year warranty • Choice of measurement units: Knots, Metres per second, Kilometres per hour, Miles per hour, Feet per minute and Beaufort Force. Centigrade and Fahrenheit

Measurement Units of Measure Accuracy Range Current, Max and Average kt, m/s, km/h, mph, ft/min, ±3% of reading 0.4 to 40 m/s Wind speed Beaufort (B) or ±0.1 m/s Temperature, Wind Chill ºC, ºF ±1ºC -29 to +70ºC Heat index, Dew Point Relative Humidity % ±3% or scale 5 to 95%

DESCRIPTION Wind chill and heat index are equivalent The Kestrel 3000 Environmental meter provides temperatures that show the user how their high quality, performance and functionality. It has environment really feels. Wind chill is the three buttons below the display, making operation combination of wind speed and temperature, while simple and allowing the user to view data in current, heat index is the combined effect of air temperature maximum and average wind speed, temperature, and relative humidity. wind chill, relative humidity, heat index and dew The liquid crystal display has large 9mm high digits point displays and also the data hold function. and is backlit for a clear readout in low light The Kestrel 3000 is a small, electronic rotating vane conditions. Power is from an easily replaceable type of anemometer with built-in temperature and standard lithium coin cell battery, which will typically humidity sensors. It uses high precision jewel give up to 300 hours of operation. The instrument bearings and a light weight impeller to provide automatically switches off if no keys are pressed for accurate air flow measurements even at low 45 minutes. speeds. The impeller assembly is replaceable by The Kestrel 3000 is made from high impact injection the user in the case of damage. moulded plastic and corrosion resistant materials In order to quickly determine a steady temperature with the electronics fully sealed. It will float if reading, the precision thermistor temperature accidentally dropped into water. There is a hard sensor is mounted externally. cover for protection when not in use and a lanyard is provided for added security.

SPECIFICATION Dimensions 122mm x 42mm x 20mm Cover dimensions 122mm x 46mm x 26mm Weight 65g Physical Cover weight 37g Lanyard 0.5m Case colour Maroon Display type Reflective 3½ digit LCD Digit height 9mm Display update 1 second Current wind speed (3 second average) Average speed since power on (AVG) Maximum 3 second gust since power on (MAX) Temperature Display Functions Wind chill Relative humidity Heat Index Dew point Data hold (HOLD) Speed units kt, m/s, km/h, mph, ft/min, Beaufort Force (B) Temperature units °C, °F Operational range 0.4m/s to 60m/s (0.8 to 135.0mph) Specification range 0.4m/s to 40m/s (0.8 to 89.0mph) Larger of ± 3% of reading or least significant digit. (Some loss of accuracy from On axis accuracy Speed bearing wear may occur with sustained operation at or near maximum speed) (1 sec response) Off-axis response -1% @ 5°, -2% @ 10°, -3% at 15° Calibration drift <1% after 100hrs operation at 7m/s 0.1 kt, m/s, km/h, mph. 1 FPM below 1999 FPM, 10 FPM above 2000 FPM. Resolution 1 Beaufort (0 to 12) Operational range -45.0°C to +125.0°C Temperature Specification range -29.0°C to +70.0°C Performance (1 sec response) Accuracy ±1°C Resolution 0.1° Wind chill accuracy ±1.0°C (from wind speed and temperature) Operational range 0% to 100% Relative Specification range 5% to 95% non-condensing Humidity Resolution 0.1% (1 min response) Accuracy ±3% (when unit allowed to equilibrate to external temperature) Calibration drift ±2% over 24 months (correctable) Heat index accuracy ±2°C (between 21.1°C and 54.4°C) Dew point accuracy ±2°C (above 20% relative humidity) Diameter 25mm. Impeller High precision axle and jewel (sapphire) bearings. Sensors User replaceable impeller assembly Temperature Thermally isolated, hermetically sealed precision thermistor Relative Humidity Polymer capacitive sensor, mounted externally in thin-walled chamber Sealing Electronics enclosure IP67 [Water resistant] Shock Drop tested (MIL.STD.810F - unit only) Environmental Operating range: -10°C to +55°C (for LCD readability and batteries) Temperature Storage range: -30°C to +60°C EMC CE marked Battery Lithium coin cell CR2032, included, user replaceable Battery Life 300 hours of use, typical ± depending on backlight use Auto switch off 45 minutes after last key press Cover Snap on hard cover for protection Utilises the (US) NWS Wind Chill Temperature (WCT) Index, revised 2001, with Wind chill equivalent temperature wind speed adjusted by a factor of 1.5 to yield equivalent results for wind speed calculation Miscellaneous measured at 10m above ground Heat Index calculation Steadman, from temperature and relative humidity Wind speed, temperature and humidity measurements are tested during manufacture. Certification A certificate of conformity (C of C) is included with each Kestrel. Calibration certificates are available for an additional fee. Guarantee 5 years The manufacturer reserves the right to amend the specification and therefore the information in this document may be subject to change. Please check our website www.r-p-r.co.uk for details

Richard Paul Russell Ltd New Harbour Building, Bath Road, Lymington, SO41 3SE, UK Tel +44 (0) 1590 679755 Fax +44 (0) 1590 688577 e-mail: [email protected] www.r-p-r.co.uk